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Other aircraft modifications

STC SR00119DE

FAA DRS lists SR00119DE as Current · Reissued, held by Midwest Aerospace TC LLC, for Rotorcraft Development UH-1B, Rotorcraft Development HH-1K, and Rotorcraft Development TH-1L, and 13 more aircraft configurations. Recorded change: Installation of an upgraded 42 degree Tail Rotor gearbox, P/N 212-040-003, and Control Cables. Snapshot dated June 30, 2026.

FAA-listed holder
Midwest Aerospace TC LLC
Aircraft configurations
16
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of an upgraded 42 degree Tail Rotor gearbox, P/N 212-040-003, and Control Cables.

SR00119DE identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.

Applicability

Aircraft named in FAA DRS

Named aircraft: Rotorcraft Development UH-1B, Rotorcraft Development HH-1K, and Rotorcraft Development TH-1L, and 13 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Rotorcraft Development UH-1BH13WERotorcraft Development HH-1KH5NMRotorcraft Development TH-1LH5NMRotorcraft Development UH-1EH5NMRotorcraft Development UH-1LH5NMInternational Helicopters UH-1BH5SOOverseas Aircraft Support TH-1LH7SOOverseas Aircraft Support UH-1EH7SOOverseas Aircraft Support UH-1LH7SOSmith Helicopters UH-1EH8NMRichards Heavylift Helo UH-1BH3SO
Bell Helicopter Textron TH-1LH4NM
Bell Helicopter Textron UH-1EH4NMBell Helicopter Textron UH-1LH4NM
West Coast Fabrications UH-1EH9NM
Hawkins & Powers Aviation UH-1BH1RM

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Rotorcraft Development UH-1B and Rotorcraft Development HH-1K, and 14 more aircraft configurations model, serial range, and configuration?
  2. 02Which configuration, parts, installation data, limitations, and ICAs apply?
  3. 03Who can legally supply the design data, kit, instructions, and ICAs?
  4. 04What parts, labor, conformity, and return-to-service work are excluded?

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